Low-cost user interface for refrigerant recycling machine

Details Low-cost user interface for refrigerant recycling machine Low-cost user interface for refrigerant recycling machine

1996-12-23

1999-10-05

Lefkowitz, Edward

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

345145, 345156, G09G 500

Patent

active

059631988

ABSTRACT:
A refrigerant recovery and/or recycling system includes fluid flow control mechanism controlling the flow of refrigerant between a refrigerant containing structure and an associated refrigeration unit, under the control of a microprocessor-based control circuit. The system has a text-based display screen and selective input keys including software-definable keys respectively associated with different regions of the display screen and respectively associated therewith by indicia on the screen bezel. Memories are coupled to the control circuit for cooperation therewith to control the display of messages on the display screen and for defining functions performed by the software-definable keys in accordance with the corresponding messages displayed on the display screen.

REFERENCES:
patent: 3821525 (1974-06-01), Eaton et al.
patent: 4385291 (1983-05-01), Piguet
patent: 4800378 (1989-01-01), Putrow et al.
patent: 4977310 (1990-12-01), Studer et al.
patent: 5121113 (1992-06-01), Kedge et al.
patent: 5161535 (1992-11-01), Short et al.
patent: 5221838 (1993-06-01), Gutman et al.
patent: 5224861 (1993-07-01), Glass et al.
patent: 5418760 (1995-05-01), Kawashima et al.
patent: 5420606 (1995-05-01), Begum et al.
patent: 5424524 (1995-06-01), Ruppert et al.
patent: 5428341 (1995-06-01), Takahashi et al.
patent: 5438180 (1995-08-01), Esisenbrandt et al.
patent: 5440325 (1995-08-01), Edmark, III
patent: 5450316 (1995-09-01), Gaudet et al.
patent: 5508500 (1996-04-01), Martin et al.
patent: 5508947 (1996-04-01), Sierk et al.
patent: 5515267 (1996-05-01), Alsenz
patent: 5533359 (1996-07-01), Muston et al.
patent: 5564285 (1996-10-01), Jurewicz et al.

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